fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8
...
fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8
Starting 3 threads
Threads: 3
Threads: 3
Threads: 3: [mmm] [6.8% done] [ 11530/  4658 kb/s] [eta 00m:41s]
Threads: 3: [mmm] [10.0% done] [ 12648/  4984 kb/s] [eta 00m:36s]
Threads: 3: [mmm] [12.2% done] [  7304/  6992 kb/s] [eta 00m:36s]
Threads: 3: [mmm] [15.0% done] [ 11544/  2584 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [18.4% done] [  8548/  4636 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [20.5% done] [  6964/  5248 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [23.1% done] [  6600/  7524 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [26.3% done] [ 10864/  3288 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [28.2% done] [  6004/  6292 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [30.8% done] [ 10848/  2204 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [32.5% done] [  7512/  3708 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [34.1% done] [  1260/ 11296 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [37.5% done] [  6848/  4304 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.0% done] [  1968/ 10332 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [42.5% done] [  3728/  6036 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [45.0% done] [  6512/  3860 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [46.3% done] [  4668/  4044 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [47.6% done] [  2624/  7120 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  4424/  4872 kb/s] [eta 00m:21s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [52.4% done] [  4520/  2668 kb/s] [eta 00m:20s]
fio: pid=892, got signal=6
Threads: 2: [m_m] [54.8% done] [  7156/   224 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=893, got signal=6
Threads: 1: [m__] [58.5% done] [  7872/     0 kb/s] [eta 00m:17s]
Threads: 1: [m__] [64.1% done] [  8604/     0 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=891, got signal=6

fio: (groupid=0): err= 0: pid=891
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=1.2%, 4=33.8%, 8=64.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.0%, 10=0.1%, 20=1.8%, 50=35.9%, 100=14.0%
     lat (msec): 250=32.3%, 500=13.2%, 750=1.9%, 1000=0.2%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=892
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=3.7%, 4=36.1%, 8=59.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.4%, 10=1.3%, 20=4.3%, 50=17.6%, 100=20.7%
     lat (msec): 250=51.4%, 500=3.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=893
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=2.6%, 4=33.0%, 8=63.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.0%, 10=1.2%, 20=3.4%, 50=12.7%, 100=28.1%
     lat (msec): 250=49.0%, 500=4.4%, 750=0.4%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3357/2289, merge=523/252, ticks=54544/44512, in_queue=99056, util=99.09%
0.22user 0.38system 0:26.76elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2485minor)pagefaults 0swaps